8512
CORDLESS DRIVER DRILL
USER MANUAL 1
SPECIFICATIONS
Model 8512
Battery type Lithium-lon
Rated voltage 12V
No-load speed 0-350
0-1350(rpm)
Max clutch 10mm
Max screw diameter (mm) 8mm
Allowable temperature 5-40
Charger input 200-240 V
Drill weight 1.04 kg
PARTS LIST
Mode Selector Switch
Torque Collar
Automatic Chuck
LED Lamp
On/Off Switch
Battery
Reverse Switch
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GENERAL SAFETY RULES
(FOR ALL BATTERY OPERATED TOOLS)
WARNING:
Read and understand all instructions. Failure to follow all instructions listed
below, may result in electric shock, fire and/ or serious personal injury.
WORK AREA
1. Keep your work area clean and well lit. cluttered benches and dark
areas invite accidents.
2. Do not operate power tools in explosive atmospheres, such as in
the presence of flammable liquids, gasses, or dust. Power tools create
sparks which may ignite the dust or fumes.
3. Keep bystanders, children, and visitors away while operating a power
tools. Distractions can cause you to lose control.
Electrical Safety
4. A battery operated tool with integral batteries or a separate battery
pack must be recharged only with the specified charger for the battery.
A charger that may be suitable for one type of battery may create a risk
of fire when used with another battery.
5. Use battery operated tool only with specifically designated battery
pack.
Use of any other batteries may create a risk of fire.
PERSONAL SAFETY
6. Stay alert, watch what you are doing, and use common sense when
operating a power tool. do not use tool while tired or under the influence
of drugs, alcohol, or medication. A moment of inattention while operating
power tools may result in serious personal injury.
USER MANUAL 3
7. Dress properly. Do not wear loose clothing or jewelry, contain long
hair. Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
8. Avoid accidental starting. Be sure switch is in the locked or off position
before inserting battery pack. Carrying tools with your finger on the
switch or in serting the battery pack into a tool with the switch on invites
accidents.
9. Remove adjusting keys or wrenches before turning the tool on. A
wrench or a key that is left attached to a rotating part of the tool may
result in personal injury.
10. Do not overreach. Keep proper footing and balancd at all times.
Proper footing and balance enable better control of the tool in unexpected
situations.
11. Use safety equipment. Wear eye protection. Dust mask, non-skid
safety shoes, hard hat, or hearing protection must be used for appropriate
conditions.
TOOL USE AND CARE
12. Use clamps or other practical way to secure and support the
workplace to a stable platform. Holding the work by hand or against
your body is unstable and may lead to loss of control.
13. Do not force tool. Use the correct tool for your application. The correct
tool will do the job better and safer at the rate for which it is designed.
14. Do not use tool if switch does not turn it on or off. A tool that cannot
be controlled with the switch is dangerous and must be repaired.
15. Disconnect battery pack from tool or place the switch in the locked
or off position before making any adjustments, changing accessories,
or storing the tool. such preventive safety measures reduce the risk of
starting the tool accidentally.
16. Store idle tools out of reach of children and other untrained persons.
Tools are dangerous in the hands of untrained users.
17. when battery pack is not in use, keep it away from other metal objects
like: paper clips, coins, keys, nails, screws, or other small metal objects
CORDLESS DRIVER DRILL
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that can make a connection from one terminal to another. Shorting the
battery terminals together may cause sparks, burns, or a fire.
18. Maintain tools with care. Keep cutting tools sharp and clean. Properly
maintained tools with sharp cutting edge are less likely to bind and are
easier to control.
19. Check for misalignment or binding of moving parts, breakage of parts
and any other condition that may affect the tool’s operation. If damaged,
have the tool serviced before using. Many accidents are caused by
poorly maintained tools.
20. Use only accessories that are recommended by the manufacturer
for your model. Accessories that may be suitable for one tool may create
a risk for injury when used on another tool.
SERVICE
21. Tool service must be performed only by qualified repair personnel.
Service or maintenance performed by unqualified personnel may result
in a risk of injury.
22. When servicing a tool, use only identical replace ment parts.
Follow instructions in the maintenance section of this manual. Use of
unauthorized parts or failure to follow Maintenance instructions may
create a risk of shock injury.
SPECIFIC SAFETY RULES
DO NOT let comfort or familiarity with product (gained from repeated
use) replace strict adherence to cordless drill safety rules. If you use this
tool unsafely or incorrectly, you can suffer serious personal injury.
1. Hold tool by insulated gripping surfaces when performing an operation
where the cutting tool may contact hidden wiring. Contact with a “live”
wire will also make exposed metal parts of the tool “live” and shock the
operator.
2. Be aware that this tool is always in an operating condition, because it
does not have to be plugged into an electrical outlet.
USER MANUAL 5
Always be sure you have a firm footing.
4. Be sure no one is below when using the tool in high locations.
5. Hold the tool firmly.
6. Keep hands away from rotating parts.
7. Do not leave the tool running. Operate the tool only when hand-held.
8. Do not touch the drill bit or the workpiece immediately after operation;
they may be extremely hot and could bum your skin.
9. Some material contains chemicals which may betoxic. Take caution
to prevent working dust inhalation and skin contact. Follow material
supplier safety data.
SYMBOLS
The following show the symbols used for tool.
V …………….. volts
−……….....….. direct current
n°………...…… no load speed
…/min ……… revolutions or reciprocation per minute
IMPORTANT SAFETY INSTRUCTIONS FOR BATTERY
1. Before using battery cartridge, read all instructions and cautionary
markings on (1) battery charger, (2) battery, and (3) products using
battery.
2. Do not disassemble battery cartridge.
3. if operating time has become excessively shorter, stop operating
immediately. It may result in a risk of overheating, possible bums and
even an explosion.
4. if electrolyte gets into your eyes, rinse them out with clean water and
seek medical attention right away. It may result in loss of your eyesight.
5. Always cover the battery terminals with the battery cover when the
battery cartridge is not used.
6. Do not short the battery cartridge:
(1) Do not touch the terminals with any conductive material.
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(2) Avoid storing battery cartridge in a container with other metal objects
such as nails, coins, etc.
(3) Do not expose battery cartridge to water or rain A battery short can
cause a large current flow, over heating, possible bums and even a
breakdown.
7. Do not store the tool and battery cartridge in locations where the
temperature may reach or exceed 50C (122F).
8. Do not incinerate the battery cartridge even if if is severely damaged
or is completely worn out. The battery cartridge can explode in a fire.
9. Be careful not to drop or strike battery.
IMPORTANT SAFETY INSTRUCTIONS FOR CHARGER
1. Before using battery charger, read all instructions and cautionary
markings on (1) battery charger, read all instructions and cautionary
markings on (1) battery charger, (2) battery, and (3) products using
battery.
2. CAUTION: To reduce risk of injury, charge only mosta reachargeable
batteries. Other types of batteries may burst, causing personal injury
and damage.
3. Non-rechargeable batteries cannot be charged with this battery
charger.
4. Use a power source with the voltage specified on the nameplate of
the charger.
5. Do not charge the battery cartridge in presence of flammable liquids
or gases.
6. Do not expose charger to rain or snow.
7. Never carry charger by cord or yank it to disconnect from receptacle.
8. After charging or before attempting any maintenance or cleaning,
unplug the charger from the power source. Pull by plug rather than cord
whenever disconnecting charger.
9. Make sure cord is located so that it willnot be stepped on, tripped
over, or otherwise subjected to damage or stress.
10. Do not operate charger with damaged cord or plug-replace them
USER MANUAL 7
immediately.
11. Do not operate or disassemble charger if it has received a sharp
blow, been dropped, or otherwise damaged in any way, take it to a
qualified serviceman. Incorrect use or reassembly may result in a risk of
electric shock of fire.
12. The battery charger is not intended for use by young children or
infirm persons without supervision.
13. Young children should be supervised to ensure that they do not play
with the battery charger.
14. Do not charge battery cartridge when tempera ture is BELOW 10C
(50F) or ABVE 40C (104F).
15. Do not attempt to use a step-up transtormer, an engine generator or
DC power receptacle.
TIPS FOR MAINTAINING MAXIMUM BATTERY LIFE
1. Charge the battery before completely discharged. Always stop tool
operation and charge the battery when you notice less tool power.
2. Never recharge a fully charged battery cartridge. Overcharging
shorten the battery service life.
3. Charge the battery with room temperature 10C-40C (50F-104F). let a
hot battery cool down before charging it.
4. Charge the nickel Metal Hydride battery when you do not use for more
than six months.
FUNCTIONAL DESCRIPTION
CAUTION:
Always be sure that the tool switched off and the battery cartridge is
removed before adjusting or checking function on the tool.
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INSTALLING OR REMOVING BATTERY CARTRIDGE
- Always switch off the tool before insertion or removal of the battery
cartridge.
- To remove the battery cartridge, withdraw it from the tool while pressing
the buttons on both sides of the cartridge.
- To insert the battery cartridge, align the tongue on the battery cartridge
with the groove in the housing and slip it into place. Always insert it all
the way until it locks in place with a little click. If not, it may accidentally
fall out of the tool, causing injury to you or someone around you.
- Do not use force when inserting the battery cartridge. If the cartridge
does not slide in easily, it is not being inserted correctly.
SWITCH ACTION
CAUTION:
- Before inserting the battery cartridge into the tool, always check to
see that the switch trigger actuates properly and returns to the “OFF”
position when released.
To start the tool, simply pull the switch trigger. Tool speed is increased
by increasing pressure on the switch trigger. Release the switch trigger
to stop.
1.Button
2.Battery Cartridge
1
2
8
USER MANUAL 9
1
1.Switch Trigge
B
A
1
1.Reversing Switch Lever
ELECTRIC BRAKE
This tool is equipped with an electric brake. If the tool consistently fails
to quickly stop after switch trigger release, have tool serviced at a Ronix
service center.
9
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REVERSING SWITCH ACTION
This tool is equipped with an electric brake. If the tool consistently fails
to quickly stop after switch trigger release, have tool serviced at a Ronix
service center.
REVERSING SWITCH ACTION
This tool has a reversing switch to change the direction of rotation.
Depress the reversing switch lever from the A side for clockwise rotation
or from the B side for counterclockwise rotation.
When the reversing switch lever is in the neutral position, the switch
trigger cannot be pulled.
CAUTION:
- Always check the direction of rotation before operation.
- Use the reversing switch only after the tool comes to a complete stop.
Changing the direction of rotation before the tool stops may damage the tool.
- When not operating the tool, always set the reversing switch lever to
the neutral position.
SPEED CHANGE
To change the speed, first switch off the tool and then slide the speed
change lever to the “2” side for high speed or “1” side for low speed. Be
sure that the speed change lever is set to the correct position before
operation. use the right speed for your job.
CAUTION:
- Always set the speed change lever fully to the correct position. If you
operate the tool with the speed change lever positioned halfway between
the “1” side and “2” side, the tool may be damaged.
- Do not use the speed change lever while the tool is running. The tool
USER MANUAL 11
may be damaged.
ADJUSTING THE FASTENING TORQUE
The fastening torque can be adjusted in 19 steps by turning the adjusting
ring so that its graduations are aligned with the poiner on the tool body.
The fastening torque is minimum when the number 1 is aligned with the
pointer, and maximum when the marking is aligned with the pointer.
The clutch will slip at various torque levels when set at the number 1 to
19. The clutch is designed not to slip at the marking.
Before actual operation, drive a trial screw into your material or a piece
of duplicate material to determine which torque level is required for a
particular application.
3
1
2
1.High Speed
2.Low Speed
3.Speed Change Lover
16 18 1 2
1
1.Graduations
2.Adjusting ring
3.Drill Marking
4.Pointer
2
3
4
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NOTE:
- The adjusting ring does not lock when the pointer is positioned only
halfway between the graduations.
- Do not operate the tool with the adjusting ring set between the number
18 and the marking. The tool may be damaged.
ASSEMBLY
1
2
3
1.Sleeve
2.Ring
3.Tighten
CAUTION:
- Always be sure that the tool is switched off and the battery cartridge is
removed before carrying out any work on the tool.
INSTALLING OR REMOVING DRIVER BIT OR DRILL BIT
Hold the ring and turn the sleeve counterclockwise to open the chuck
jaws. Place the bit in the chuck as far as it will go. Hold the ring firmly
and turn the sleeve clockwise to tighten the chuck.
To remove the bit, hold the ring and turn the sleeve counter clockwise
USER MANUAL 13
OPERATION
SCREWDRIVING OPERATION
Place the point of the driver bit in the screw head and apply pressure
to the tool. start the tool slowly and then increase the speed gradually.
Release the switch trigger as soon as the clutch cuts in.
CAUTION:
Make sure that the driver bit is inserted straight in the screw head, or the
screw and/or bit may be damaged.
NOTE:
- When driving wood screws, predrill pilot holes to make driving easier
and to prevent splitting of the workpiece. See the chart.
DRILLING OPERATION
First, turn the adjusting ring, so that the pointer points to the marking.
Then proceed as follows.
DRILLING IN WOOD
When drilling in wood, the best results are obtained with wood drills
equipped with a guide screw. The guide screw makes drilling easier by
pulling the bit into the workpiece.
DRILLING IN METAL
To prevent the bit from slipping when strating a hole, make an indentation
with a center-punch and hammer at the point to be drilled.
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OPERATION
Nominal diameter of wood screw (mm) Recommended size of pilot hole
(mm)
3.1 2.0 - 2.2
3.5 2.2 – 2.5
3.8 2.5 – 2.8
4.5 2.9 – 3.2
4.8 3.1 – 3.4
5.1 3.3 – 3.6
5.5 3.5 – 3.9
4.8 3.8 – 4.1
8.0 5.0 – 5.5
USER MANUAL 15
Place the point of the bit in the indentation and start drilling. Use a cutting
lubricant when drilling metals the exceptions are iron and brass which
should be drilled dry.
CATION:
- Pressing excessively on the tool will not speed up the drilling. In fact,
this excessive pressure will only serve to damage the tip of your bit,
decrease the tool performance and shorten the service life of the tool.
- There is a treamendous force exerted on the tool/bet at the time of hole
break through. Hold the tool firmly and exert care when the bit begins to
break through the workpiece.
- A stuck bit can be removed simply by setting the reversing switch to
reverse rotation in order to back out. However, the tool may back out
abruptly if you do not hold it firmly. Always secure small workpieces in a
vise or similar holddown device.
- If the tool is operated continuously until the battery cartridge has
discharged, allow the tool to rest for 15 minutes before proceeding with
a fresh battery.
CHRGING
3
2
1
1.Pilot Lamp
2.Battery Negative Pole
3.Charger Negative Pole
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IMPORTANT CHARGING NOTES
1. The charger was designed to fast charge the battery only when the
battery temperature is between 32F (0C) and 113F (45C). If the battery
pack is too hot or too cold, the charger will not fast charge the battery.
(this may happen if the battery pack is hot from heavy use). When the
battery temperature returns to between 32F (0C) and 113F (45C), the
charger will automatically begin charging.
2. A substantial drop in operating time per charge may mean that the
battery pack is nearing the end of its life and should be replaced.
3. Remember to unplug charger during storage period.
4. If battery does not charge properly:
a. Check for voltage at outlet by plugging in some other electrical device.
b. Check to see if outlet is connected to a light switch which turns power
“off” when lights are turned off.
c. Check battery pack terminals for dirt. Clean with cotton swab and
alcohol if necessary.
d. If you still do not get proper charging, take or send tool, battery pack
and charger to your local Bosch service Center. See “Tools, Electric” in
the Yellow Pages for names and addresses.
Note: use of chargers or battery packs not sold by Bosch will void the warranty.
CHARGER INDICATORS, SYMBOLS AND MEANING
If the indicator light are “OFF”, charger is not receiving power from power
supply outlet.
If the green indicator light is “ON”, the charger is plugged in but the battery
pack is not inserted, or the battery pack is fully charged and is being
trickle charged.
If the green indicator light is “BLINKING”, the battery pack is being fast-charged.
Fast charging will automatically stop when the battery pack is fully charged.
If the red indicator light is “ON” the battery pack is too hot or cold for
fast-charging. The charger will switch to trickle charge, until a suitable
USER MANUAL 17
temperature is reached, at which time the charger will switch automatically
to fast-charging.
If the red indicator light is “BLINKING”, the battery pack cannot accept a
charge or the contacts of the charger or battery pack are contaminated.
Clean the contacts of the charger or battery pack only as directed in these
operating instructions or those supplied with your tool or battery pack.
MAINTENANCE
CAUTION:
- Always be sure that the is switched off and the battery cartridge is
removed before attempting to perform inspection or maintenance.
To maintain product SAFETYand RELIABLITY, repairs, any other
maintenance or adjustment should be performed by professional service
centers, always using our replacement parts.
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